Ore separator and classifier.



PATENTED SEPT'. 18, 1906.

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EDWARD JOHN SWYNY, OF OF NEWTOWN,

BALMAIN, AND SAMUEL GEORGE PLUOKNETT, NEW SOUTH WALES, AUSTRALIA.

ORE SEPARATOR AND CLASSIFIER.

` Specification of Letters Patent. Application filed September 7,

Patented Sept. 18, 1906.

1904. Serial No. 223,589.

To all whom t may concern.:

Be it known that we, EDWARD JOHN SWYNY, mining engineer, residing at Cameron street, Balmain, near Sydney, and SAM- UEL GEORGE PLUexNn'rT, company manager, residing at Clifton, Dickson street, Newtown, near Sydney, aforesaid, in the State of New South Wales and Commonwealth of Australia, subjects of the King of Great Britsame time classified according to the specific` gravity.

These improvements consist in the combination with and beneath the deiiecting-plate and the bottom opening thereof of a perforated plate or bottom above a water-chamber, to which water under pressure is supplied, so that jets of water rise up on either side of said deflecting-plate, retarding the downward flow of material and water and assisting the upward flow on the discharge side, thereby insuring a thorough washing of the material and the passing upward of the lighter part; and these improvements consist, further, in the combination, with the said defiecting-plate and perforated bottom, of a series of discharge-openings inclining downwardly from said perforated bottom and having regulating-plugs thereon, so that the heavier particles may be withdrawn at any desired rate from the lowest part of the downward and upward flow of material.

In order to illustrate the method of carrying this invention into practice, reference will nowbe made to the drawings accompanying and forming part of this complete specification.

Figure 1 is a cross-sectional elevation of an ore separator and classifier constructed according to these improvements. Fig. 2 is an elevation of the same looking at the discharging-face. Fig. 3 is a sectional plan on the diagonal line 3 3 in Fig. 1.

The ends 4 and sides 5 and 6 constitute the casing of the ore separator and classifier, while the deflecting board or plate in grooves 8 in the ends divides this casing into up and down passages 9 and 10, which communicate at the bottom of said board 7 by opening 11, whose size may be regulated by means of retaining-screws 12. These passages 9 and 10 and the opening 11 are completed by the bottom formed of plate 13, bent downwardly at the discharge end, as shown. This plate 13 is finely perforated in its straight part under the passages 9 and 10. This plate is retained in place by the bolting through snugsA 14 of the chamber or trough 15 to the casing of the passages. A supply-pipe 16 conveys water under pressure to this chamber 15 so that it escapes in jets into the passages 9 and 10. A cleaning-out cock 17 is provided in the bottom of chamber 15. The side 6 has a discharge-lip 18 for the lighter material, and at its meeting with the chamber 15, which here is covered by the incline of plate 13, it is recessed and chamfered both ways, as seen in Fig. 3, toward the discharge-pipes 19, having regulating plugs or valves 20.

In operation the metalliferous material to be treated is supplied with water at regular speed to the down-passage 10, wherein at the bottom it meets with the iniiuence of the water-jets, and these jets through the perforations of bottom 13. The feed is at such rate that against this influence it carries the lighter particles or gangue through the opens ing 11 and up, now assisted by the water-jets, the passage 9 and over the lip 18 to discharge. The more valuable heavier particles are caught in the eddies caused by the meeting of the flow with the water-jets and are withdrawn at regulated rate through the pipes 19.

The rate of feed to the passage 10, the proportion of water to material in said feed, the extent of the bottom opening 11, the size of the perforations in bottom 13, the head of water supplied to thechamber 15 below these perforations, and the extent of opening of pipes 19 cannot be laid down arbitrarily, as they vary according to the material treated; but the best regulation for these is soon ascertained by slight experiment on the part IOO of men accustomed to ore separating and classifying.

Having now fully described and ascertained in what manner the same is to be performed, we declare that what we claim isk ore separator and classifier comprising a narrow stationary tank vor receptacle having a central longitudinal partition forming narrow vertical passages or chambers, a perorated plate extending beneath both chambers, a water-supplyv chamber detachably connected to the bottom of said tank and having a plurality of discharge-openings bethe nature of our said invention and tween it and the tank on one side, said perfo- 15 rated plate having downwardly-inclined parts leading to said discharge-openings, and means for controlling said openings, substantially as described.

In testimony whereof we have signed our zo names to this specification in the presence of two subscribing witnesses.

' EDWARD JOHN SWYNY. v

SAMUEL GEORGE ILUCKNETT- Witnesses:

PERGY NEWELL, M. J. CANDRIGK. 

